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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head> <meta name="generator" content= "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org"> <title>class</title> <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table> <tr> <td> <div class="body-content"> <div class="header-box"> <a href="../index.html">cppreference.com</a> > <a href= "index.html">C/C++ Keywords</a> > <a href="class.html">class</a> </div> <div class="name-format"> class </div> <div class="syntax-name-format"> Syntax: </div> <pre class="syntax-box"> class class-name : inheritance-list { private-members-list; protected: protected-members-list; public: public-members-list; } object-list;</pre> <p>The class keyword allows you to create new classes. <em>class-name</em> is the name of the class that you wish to create, and <em>inheritance-list</em> is an optional list of classes inherited by the new class. Members of the class are private by default, unless listed under either the protected or public labels. <em>object-list</em> can be used to immediately instantiate one or more instances of the class, and is also optional. For example:</p> <pre class="example-code"> class Date { int Day; int Month; int Year; public: void display(); }; </pre> <div class="related-name-format"> Related topics: </div> <div class="related-content"> <a href="friend.html">friend</a><br> <a href="private.html">private</a><br> <a href="protected.html">protected</a><br> <a href="public.html">public</a><br> <a href="struct.html">struct</a><br> <a href="this.html">this</a><br> <a href="typename.html">typename</a><br> <a href="union.html">union</a><br> <a href="virtual.html">virtual</a> </div> </div> </td> </tr> </table></body></html>⌨️ 快捷键说明
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